324 GEOLOGY OF ILLINOIS. 



from No. 6. It does not kindle as easily but lasts longer, and for some pur- 

 poses is preferred. 



Coal No. 3. This is worked in township 10, range 1, and furnishes a good 

 coal, and the larger part of the supply for this section. 



The remaining portions of the county are supplied by mines which, probably, 

 are in coal No. 2. At most places where worked, this coal is of excellent 

 quality, and usually pretty free from admixture with other substances. It is 

 largely used for, and well adapted to, blacksmithing purposes. Though this is 

 the thinnesl seam worked, yet the amount obtained from it is quite large. 



Coal No. 1 was only recognized at one point in the county, on section 21, 

 township 12, range 1. 



From this it will be seen that Knox county is abundantly supplied with good 

 coal, there being but three townships in which coal is not mined now, viz: 

 township 13, ranges 2, 3 and 4, and in two of them it has been worked for- 

 merly, and probably not less than two workable seams may be found in every 

 part of these townships. 



